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#!/usr/bin/env perl
use strict;
use warnings;
use FindBin;
use lib ("$FindBin::Bin/../PerlLib");
use Fasta_reader;
my $usage = "usage: $0 file.fasta numTopLongest\n\n";
my $file = $ARGV[0] or die $usage;
my $num_longest = $ARGV[1] or die $usage;
main: {
my @entries;
my $fasta_reader = new Fasta_reader($file);
while (my $seq_obj = $fasta_reader->next()) {
my $seq = $seq_obj->get_sequence();
my $len = length($seq);
push (@entries, [$seq_obj, $len]);
}
@entries = reverse sort {$a->[1]<=>$b->[1]} @entries;
my $counter = 0;
foreach my $entry (@entries) {
my ($seq_obj, $num) = @$entry;
print $seq_obj->get_FASTA_format();
$counter++;
if ($counter >= $num_longest) {
last;
}
}
exit(0);
}
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